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Topic Review (Newest First)

10-28-2012 10:46 PM

techinspector1

Quote:

Originally Posted by jjack010

Gave a shot at determining stall tonight. Brakes would hold til 1800rpm. I know that's not a real accurate way to measure since I'm not sure if that was the true stall speed or if the brakes just give at that point. I tried to get flash stall speed but it was damn hard by myself. I did record it and looked like 2200 but the tires were spinning. I'll try a few more runs tomorrow.

Drum brakes on the rear? Adjust the shoes out against the drum before leaning on the brake pedal.

10-28-2012 09:04 PM

jjack010

Good advice, thanks. I installed a Moroso 4 hole 1in carb spacer that I've had sitting around for a while. I felt a noticable difference in seat of the pants power. Especially mid range. Hopefully Wednesday I can make time to install the roller rockers.

OH! And I finally looked at my engine casting number.............14016379. From my research- 350 1977 - 79 2 or 4 bolt main bearings. Are there any other stampings that would tell me 2 or 4 bolt main?

10-28-2012 01:52 AM

vinniekq2

call scoggin dickey the gm dealership and ask about the performance vortecs

10-28-2012 01:49 AM

jjack010

What's a reasonable price to pay for a set of vortec 906's? Found some locally, guy says they are fresh from machine shop. Dang, they are a lot more expensive than the early heads.

10-28-2012 01:27 AM

jjack010

I may actually look into that. I know nothing about vortec "stuff." Scared to take the plunge, but I continue to hear even a stock vortec head makes great power. So will everything else I have work with the vortec intake and heads.......distrubutor, carb, headers, etc?

10-27-2012 11:35 PM

cobalt327

Quote:

Originally Posted by jjack010

I'm not worried about the stall, just trying to learn everything I can about the truck. It pulls hard down low so it should be pretty close to what is recommended for weight, cam, etc. Also, finally found the weight of the truck......3800lbs. At least it's the lighter of many full size trucks.

Swap the heads for Vortecs, paying attention to the static and dynamic compression ratio and quench distance. Attention to details makes a LOT of difference in the final results.

Use a matching Vortec intake like the Edelbrock RPM. Keep the 750 carb. Use long tube headers w/dual exhaust w/a connector between the two sides aft of the collector and before the mufflers.

See what the cam is that you now have. You could have a roller block- if so use a hydraulic roller cam and lifters if the cam needs to be changed from a flat tappet cam and lifters. You can pick up the lifters, dogbones, spider and cam retainer off eBay. Info on what blocks to look for is here.

If you want to double check the weight, take it down to the recyclers and weight it on a drive-on scale. Some dumps also have a scale available.

10-27-2012 08:51 PM

jjack010

I'm not worried about the stall, just trying to learn everything I can about the truck. It pulls hard down low so it should be pretty close to what is recommended for weight, cam, etc. Also, finally found the weight of the truck......3800lbs. At least it's the lighter of many full size trucks.

10-27-2012 08:17 PM

vinniekq2

your numbers sounds realistic.Why are you worried about stall?get the engine dialed first.dont change rear gears to match any cam,the gears are for the cars purpose,same with engine and trans.change one item at a time.

10-27-2012 08:08 PM

jjack010

Gave a shot at determining stall tonight. Brakes would hold til 1800rpm. I know that's not a real accurate way to measure since I'm not sure if that was the true stall speed or if the brakes just give at that point. I tried to get flash stall speed but it was damn hard by myself. I did record it and looked like 2200 but the tires were spinning. I'll try a few more runs tomorrow.

10-27-2012 06:56 PM

jjack010

I do have them listed cheap. I don't prefer them but someone will want them. I think i have a starter issue so on to a new thread for the time being.

10-27-2012 06:50 PM

ap72

Quote:

Originally Posted by jjack010

I have the heads and gear drive listed for sale locally. There is a pair of 186's for sale local but i think he wants tk much for them. I don't really want to spend the money on a super charger, yet. I am interested in experimented with some novice porting though.

unless you find a poor sucker those arts are only worth the price of scrap iron (heads) or the cost of a roller timing chain (as it works better than the gear drive).

List it cheap and hope for a sucker.

10-27-2012 05:43 PM

jjack010

I have the heads and gear drive listed for sale locally. There is a pair of 186's for sale local but i think he wants tk much for them. I don't really want to spend the money on a super charger, yet. I am interested in experimented with some novice porting though.

10-27-2012 04:27 PM

jjack010

I'm on the hunt for some good 64cc heads now without paying a fortune. I'd like to get rid of the 882's I have sitting in the garage first. I don't believe the cam in it now is stock because of the idle and performance down low.

I have a minor starting issue right now. After I fix that I plan on seeing what my stall speed is.

I've got 4 days off next weekend. Maybe I'll dig in to that top end?? I've got some good roller rockers and a pete jackson gear drive just sitting here.

10-27-2012 03:27 PM

ap72

heads are a big choke, when you pull them off you can tell some of the rest of the specs (bore, stroke, and piston) you can also pull the timing cover while you're there and see what cam you have and/or replace it.

A decent mild cam kit and some decent heads can be had for less than a grand- or you can get some really nice stuff and spend over 3 grand for that stuff.

10-26-2012 02:30 PM

jjack010

Ok, i have both tools in the garage. Ill do a search and see if i can figure out how to take the measurements.

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